We're dividing 639483 by 89 
Let's see how many times 89 fits into 639483.

Advancing to step 1:
When dividing 6 by 89, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 89

Let's proceed to step 2:
63 divided by 89 is 0 with a remainder of 63.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Include the next digit (9) from the dividend after 63, then repeat: 639 / 89

Step 3:
89 goes into 639 7 times with a remainder of 16.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 623 from 639 leaves us with 16.
Bring next digit (4) of the dividend behind the 16 and repeat the process: 164 / 89

Moving on to step 4:
The number 89 fits into 164 1 times, leaving a remainder of 75.
Write down 1 as next digit of the result. 
Result so far: 71.0
Subtract 89 from 164 to get 75.
Fetch the next digit (8) from the dividend, attach it to 75 and continue: 758 / 89

On to step 5:
If we divide 758 by 89, we get 8 and a remainder of 46.
The number 8 becomes the next digit in our result. 
Result so far: 718.0
Subtract 712 from 758 to get 46.
Take the next digit (3) from the dividend and append it to 46, then repeat: 463 / 89

Going ahead to step 6:
The number 89 fits into 463 5 times, leaving a remainder of 18.
Record the quotient 5 as the next digit in the result. 
Result so far: 7185.0
Deduct 445 from 463 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 7:
If we divide 180 by 89, we get 2 and a remainder of 2.
The next digit of our result is 2. 
Result so far: 7185.2
If we take 178 away from 180, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
89 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 7185.2
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
200 divided by 89 is 2 with a remainder of 22.
Write down 2 as next digit of the result. 
Result so far: 7185.202
If we subtract 178 from 200, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 10:
89 can be fit into 220 2 times, resulting in a remainder of 42.
The next digit of our result is 2. 
Result so far: 7185.2022
The remainder is 42 after subtracting 178 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

The final result is 7185.2022 with a remainder of 0.00042.